Question

The delay period depends upon the nature of the fuel mixture strength.

(a) True

(b) False

I had been asked this question by my school teacher while I was bunking the class.

The query is from Delay Period in portion Combustion and Combustion Chambers of IC Engine

Answer 1

The correct answer is:

(a) True

The delay period in an internal combustion engine depends on several factors, including the nature of the fuel and the mixture strength. The mixture strength refers to the air-fuel ratio, and when the mixture is richer (more fuel), the delay period tends to be longer because the ignition temperature is reached more slowly. Conversely, a leaner mixture (less fuel) generally leads to a shorter delay period as the ignition occurs more quickly. Therefore, the fuel mixture strength plays an important role in determining the length of the delay period.